A skip-bucket hybrid hoisting shaft bottom powder ore recovery system

Abstract

This application relates to a mixed hoisting system for recovering fine ore at the bottom of a vertical shaft using a skip and cage mechanism. The system includes: a reverse chamber located on the bottom level roadway, housing a loader within the reverse chamber; a transport ramp connecting to the bottom level roadway, which slopes upwards to connect to the main transport roadway; tracks installed on the bottom level roadway and the transport ramp; mine cars mounted on the tracks; a hoisting winch installed at the rear end of the tracks; and a traction wire rope on the hoisting winch connected to the mine cars. A switch is located on the track at the top of the transport ramp, connecting to the main transport roadway. An electric locomotive in the main transport roadway pulls the mine cars to the ore pass for unloading. The solution provided in this application allows for the loading of fine ore onto mine cars using the reverse chamber and loader, and coordinates with the tracks, transport ramp, and hoisting winch for hoisting operations. The switch and electric locomotive facilitate the transfer of mine cars and fine ore, efficiently recovering fine ore from the bottom of the shaft and improving the overall recovery efficiency.

Description

Technical Field

[0001] This application relates to the field of fine ore recovery technology, and in particular to a fine ore recovery system at the bottom of a vertical shaft for mixed hoisting using a skip and cage. Background Technology

[0002] In metal mines, friction hoists are commonly used to transport ore. During the hoisting process, it is unavoidable that some fine ore will spill to the bottom of the mine, resulting in resource waste. Furthermore, a large accumulation of fine ore at the bottom can cause the hoist's tail rope to become tangled, affecting the safe operation of the hoist. Therefore, it is necessary to regularly collect the fine ore from the bottom of the mine to reduce losses and ensure a safe distance of at least 5 meters between the fine ore and the tail rope.

[0003] Currently, the common method for recovering fine ore in various metal mines is to use electric scrapers to collect the fine ore and then use electric hoists to lift the fine ore from the fine ore shaft to the loading station. In this method, the efficiency of collecting fine ore with electric scrapers is low, the risk of hoisting operations is high, the labor intensity of workers is high, the cleaning cycle is long, and most of the shafts have a large amount of water seepage at the bottom, making the working environment relatively harsh.

[0004] Therefore, it is necessary to design a bottom-of-shaft ore powder recovery system to solve the problem of ore powder scattered during the mixing and hoisting of ore in the skip and cage vertical shaft, which makes it difficult to recover the bottom-of-shaft ore powder and improve the ore powder recovery efficiency. Utility Model Content

[0005] To address or partially address the problems existing in related technologies, this application provides a skip-cage mixed hoisting shaft bottom powder ore recovery system, which aims to solve the problem of difficulty in recovering bottom powder ore caused by scattered powder ore during skip-cage mixed hoisting shaft hoisting.

[0006] This application provides a skip-cage mixed hoisting vertical shaft bottom fines recovery system, comprising:

[0007] Shaft, bottom ore powder, tilting chamber, bottom level roadway, track, transport ramp, loader, mine car, traction wire rope, turnout, hoisting winch and locomotive;

[0008] The tilting chamber is located on the bottom level roadway connected to the shaft, and a loader is installed inside the tilting chamber;

[0009] The transport ramp connects to the bottom level roadway of the shaft, and the transport ramp slopes upwards to connect to the main transport roadway. Tracks are installed on the bottom level roadway and the transport ramp.

[0010] Mining cars are installed on the track, and a hoisting winch is installed at the rear end of the track. The traction wire rope on the hoisting winch is connected to the mining cars.

[0011] A switch is installed on the track at the top of the transport ramp. The switch connects to the main transport roadway, where an electric locomotive pulls the mine car to the ore pass and completes the unloading.

[0012] Optionally, in some embodiments, the transport ramp has an inclination angle of 15° and ample space on the sides to meet the needs of personnel passage; a safety door is installed at the top of the transport ramp to prevent personnel from entering the bottom of the well during non-fine ore recovery operations.

[0013] Optionally, in some embodiments, the turnout is installed in the transport roadway, and a switch is provided at the connection between the turnout and the track. When the mine car is lifted to the top of the transport ramp, the switch is activated to adjust the track angle, and the mine car is pulled to the turnout by an electric locomotive.

[0014] Optionally, in some implementations, one or more mining cars may be installed on the track.

[0015] Optionally, in some embodiments, the size of the tilting chamber is determined according to the external dimensions of the loader, and the outlet of the tilting chamber is widened by anchor spraying or concrete pouring to prevent the loader from scraping the chamber wall when tilting.

[0016] The technical solution provided in this application may include the following beneficial effects:

[0017] The fine ore is loaded onto mine cars by a reverse-flowing chamber and a loader. The hoisting is carried out in conjunction with the rails, transport ramps, and hoisting winches. The transfer of mine cars and fine ore is realized by using switches and locomotives. This method efficiently completes the recovery of fine ore at the bottom of the shaft, effectively solving the problem of difficult recovery of fine ore at the bottom of the shaft caused by scattered fine ore when hoisting ore in a mixed hoisting shaft with skips and cages. This improves the efficiency of fine ore recovery, reduces the labor intensity of personnel, and reduces the safety risks of operation.

[0018] It should be understood that the above general description and the following detailed description are exemplary and explanatory only, and do not limit this application. Attached Figure Description

[0019] The above and other objects, features and advantages of this application will become more apparent from the more detailed description of exemplary embodiments thereof in conjunction with the accompanying drawings, wherein the same reference numerals generally represent the same components in the exemplary embodiments thereof.

[0020] Figure 1 This is a schematic diagram of the structure of the skip-cage mixed hoisting vertical shaft bottom fines recovery system shown in the embodiments of this application;

[0021] Figure 2 This is a top view schematic diagram of the bottom fine ore recovery system of the skip-cage mixed hoisting vertical shaft shown in the embodiments of this application.

[0022] Attached reference numerals: 1-shaft, 2-bottom ore powder, 3-reverse chamber, 4-bottom level roadway, 5-track, 6-transport ramp, 7-loader, 8-mine car, 9-traction wire rope, 10-turnout, 11-hoisting winch, 12-electric locomotive. Detailed Implementation

[0023] Embodiments of this application will now be described in more detail with reference to the accompanying drawings. While embodiments of this application are shown in the drawings, it should be understood that this application may be implemented in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided to make this application more thorough and complete, and to fully convey the scope of this application to those skilled in the art.

[0024] It should be understood that although the terms "first," "second," "third," etc., may be used in this application to describe various information, this information should not be limited to these terms. These terms are only used to distinguish information of the same type from one another. For example, without departing from the scope of this application, first information may also be referred to as second information, and similarly, second information may also be referred to as first information. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this application, "multiple" means two or more, unless otherwise explicitly specified.

[0025] In the description of this application, it should be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application.

[0026] Unless otherwise expressly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0027] Currently, the common method for recovering fine ore in various metal mines is to use electric scrapers to collect the fine ore and then use electric hoists to lift the fine ore from the fine ore shaft to the loading station. In this method, the efficiency of collecting fine ore with electric scrapers is low, the risk of hoisting operations is high, the labor intensity of workers is high, the cleaning cycle is long, and most of the shafts have a large amount of water seepage at the bottom, making the working environment relatively harsh.

[0028] To address the aforementioned problems, this application provides a skip-cage hybrid hoisting vertical shaft bottom powder ore recovery system. This system loads powder ore onto mine cars via a reverse chamber and a loader, and performs hoisting calculations using tracks, transport ramps, and hoisting winches. Switches and electric locomotives facilitate the transfer of mine cars and powder ore, efficiently completing the recovery of powder ore at the bottom of the shaft. This effectively solves the problem of difficult recovery of powder ore at the bottom of the shaft caused by scattered powder ore during skip-cage hybrid hoisting of ore, improving powder ore recovery efficiency, reducing labor intensity, and lowering operational safety risks.

[0029] The technical solutions of the embodiments of this application are described in detail below with reference to the accompanying drawings.

[0030] Figure 1 This is a schematic diagram of the structure of the skip-cage mixed hoisting vertical shaft bottom fine ore recovery system shown in the embodiments of this application.

[0031] See Figure 1 A skip-cage mixed hoisting vertical shaft bottom fine ore recovery system, comprising:

[0032] 1. Shaft, 2. Bottom ore powder, 3. Bottom level roadway, 4. Track, 5. Transport ramp, 6. Shovel, 7. Mine car, 8. Traction wire rope, 9. Turnout, 10. Hoisting winch, 11. and locomotive;

[0033] The tilting chamber 3 is located on the bottom level roadway 4 connected to the shaft 1, and a loader 7 is installed inside the tilting chamber 3. The size of the tilting chamber 3 is determined according to the external dimensions of the loader 7. The outlet of the tilting chamber 3 is widened by anchor spraying or concrete pouring to prevent the loader 7 from scraping against the chamber wall when tilting. The tail cable reel of the loader 7 is suspended from the top of the chamber. After the shaft 1 is filled with the bottom fine ore 2, the loader 7 retreats to the tilting chamber 3 with its front facing the side of the mine car 8 for loading.

[0034] The haulage ramp 6 connects to the bottom level roadway 4 and slopes upwards to connect to the main haulage roadway. The ramp 6 has an inclination angle of 15° and ample side clearance to accommodate personnel. A safety door is installed at the top of the ramp 6 to prevent personnel from entering the mine during non-mineral ore recovery operations. Tracks 5 are installed on both the bottom level roadway 4 and the ramp 6. Mine cars 8 are mounted on tracks 5; the number of mine cars 8 can be determined based on actual conditions, allowing for the simultaneous transport of one or more at a time. A hoisting winch 11 is installed at the rear of track 5, with a traction wire rope 9 connected to the mine cars 8. The hoisting winch 11 has a dedicated winch room; its doors are closed during non-operational periods to prevent personnel from entering.

[0035] The top of track 5 is connected to a turnout 10, which is installed in the main transport roadway. A switch is installed at the connection between the turnout 10 and track 5. When the mine car 8 is lifted to the top of the transport ramp 6, the switch is activated to adjust the track angle. The mine car 8 is then pulled to the turnout 10 by the electric locomotive 12. The mine car 8 is then pulled to the ore pass by the electric locomotive 12 inside the turnout 10 to complete the unloading of ore.

[0036] Once the ore powder spilled into shaft 1 accumulates to a certain amount, the ore powder 2 at the bottom of the shaft is recovered. The empty mine car 8 is lowered from the main transport roadway to the bottom level roadway 4 via the hoisting winch 11 and traction wire rope 9 along the track 5. The loader 7, which is parked in the inverted chamber 3, is driven into shaft 1 to scoop and transport the ore powder. After the bucket of the loader 7 is filled with ore powder, it is moved back to the inverted chamber 3. At this time, the front of the loader 7 faces the side of the mine car 8. The loader 7 pours the ore powder from its bucket into the mine car 8, completing the ore powder loading. The hoisting winch 11 is restarted to tighten the traction wire rope 9. Under the traction of the traction wire rope 9, the mine car 8 moves along the track 5 and reaches the switch 10. The switch 10 is switched by the switchman to complete the track change. The locomotive 12 parked in the transport roadway is connected to the mine car 8 loaded with fine ore. The locomotive 12 pulls the mine car 8 loaded with fine ore to the ore pass through the transport roadway for unloading of fine ore.

[0037] The various embodiments of this application have been described above. These descriptions are exemplary and not exhaustive, nor are they limited to the disclosed embodiments. Many modifications and variations will be apparent to those skilled in the art without departing from the scope and spirit of the described embodiments. The terminology used herein is chosen to best explain the principles, practical application, or improvement of the technology in the market, or to enable others skilled in the art to understand the embodiments disclosed herein.

Claims

1. A skip-bucket hybrid hoisting shaft bottom powder ore recovery system, characterized by, include: Shaft (1), bottom ore powder (2), tilting chamber (3), bottom level roadway (4), track (5), transport ramp (6), loader (7), mine car (8), traction wire rope (9), turnout (10), hoisting winch (11) and locomotive (12); The tilting chamber (3) is located on the bottom level roadway (4) connected to the shaft (1), and a loader (7) is installed inside the tilting chamber (3). The transport ramp (6) connects to the bottom level roadway (4), and the transport ramp (6) is inclined upward to connect to the main transport roadway. Tracks (5) are installed on the bottom level roadway (4) and the transport ramp (6). A mine car (8) is installed on the track (5), and a hoisting winch (11) is installed at the rear end of the track (5). The traction wire rope (9) on the hoisting winch (11) is connected to the mine car (8). A turnout (10) is provided on the track (5) at the top of the transport ramp (6). The turnout (10) connects to the transport roadway. The ore car (8) is pulled to the ore pass by the electric locomotive (12) in the transport roadway and the ore is unloaded.

2. The skip-cage mixed hoisting vertical shaft bottom fines recovery system according to claim 1, characterized in that: The transport ramp (6) has an inclination angle of 15° and leaves ample space on the side to meet the needs of personnel passage; A safety door is installed on the upper part of the transport ramp (6) to prevent personnel from entering the bottom of the well during non-fine ore recovery operations.

3. The skip-cage mixing hoisting vertical shaft bottom fines recovery system according to claim 1, characterized in that: The turnout (10) is installed in the main transport roadway. A switch is provided at the connection between the turnout (10) and the track (5). When the mine car (8) is lifted to the top of the transport ramp (6), the switch is activated to adjust the track angle and the mine car (8) is pulled to the turnout (10) by the electric locomotive (12).

4. The skip-cage mixing hoisting vertical shaft bottom fines recovery system according to claim 1, characterized in that: One or more mine cars (8) may be installed on the track (5).

5. The skip-cage mixed hoisting vertical shaft bottom fines recovery system according to claim 1, characterized in that: The size of the tilting chamber (3) is determined according to the external dimensions of the loader (7). The outlet of the tilting chamber (3) is widened by anchor spraying or concrete pouring to prevent the loader (7) from scraping the chamber wall when tilting.

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